I. Laboratory furnishings and equipment – including technical and scientific equipment, shop machinery, office and library furnishings, stock, raw materials and chemicals, used at the West Orange laboratory by Edison, his colleagues and workers, 1887-1931. Also, similar material associated with: pre-West Orange Edison laboratory facilities; Thomas A. Edison Inc. and McGraw-Edison site operations from 1931-1972; and Edison company manufacturing operations in West Orange and elsewhere.

II. Manufactured goods, and materials associated with the research and development of manufactured goods, produced by Edison, his colleagues and enterprises: